Qualitative Test

1 Replies
Adam - March 4

Hey guys, My girlfriend just took a qualitative blood test that turned out negative. I am curious how accurate this is and the possibility of false negative results. It's at least 7-10 days after possible conception so I think we left it long enough. Is it accurate? Can we safely say she's not pregnant now or? Thanks!


Jules - March 4

Hey Adam. A qualitative blood test picks up on only a certain amount of Hcg and is simply to determine whether "pregnant or not". A quant_tative blood test picks up even small amounts of Hcg and determines (depending on the levels of Hcg) how far along you are. I found this info on the net for you: ..... "Is 10 days after conception too early for a reliable blood test? Human chorionic gonadotropin (hCG) is a hormone that is produced by the placenta of women who are pregnant. It is detectable in the blood and urine only within 10 days of fertilization. All blood tests can give you reliable results only after these first 10 days. After the fertilized egg implants, or attaches, to the inside of the uterus or other structure inside the mother, the levels of human chorionic gonadotropin (hCG) rise rapidly. The levels continue to increase throughout the first trimester of pregnancy and reach a peak 60 to 80 days after the fertilized egg implants. Many women have found that their early attempts at detecting pregnancies with home pregnancy tests result in a positive if they have indeed conceived. But even in such women blood pregnancy tests can return a negative. This can be reasoned by understanding that blood pregnancy tests are less sensitive than home pregnancy tests. But they are much more accurate. In simple words, though there is a chance that home pregnancy tests may tell you that you are pregnant, a blood test will tell you are not because they read different parameters of human chorionic gonadotropin (hCG). Your best bet is to either repeat the home pregnancy test for a sure result or to wait till at least 10 days past conception to take another blood test that can be relied upon......." Hope this info helps. You could also try and search for more info on www dot babyhopes dot com. Do you want her to be preggos? Either way, I hope you get the result you'd like. Regards, Jules.



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